National Research Council (U.S.). Transportation Research Board & National Research Council (U.S.). Transportation Research Board. Meeting. (2004). Pedestrians and bicycles: Developing countries. Transportation Research Board.
Cita Chicago (17th ed.)National Research Council (U.S.). Transportation Research Board i National Research Council (U.S.). Transportation Research Board. Meeting. Pedestrians and Bicycles: Developing Countries. Washington, D.C: Transportation Research Board, 2004.
Cita MLA (9th ed.)National Research Council (U.S.). Transportation Research Board i National Research Council (U.S.). Transportation Research Board. Meeting. Pedestrians and Bicycles: Developing Countries. Transportation Research Board, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.